with the binary (.rpm) I got an error when I tried to run it through chrome. The error contained a massive amount of dependencies, the first one being:
"ghc-ghc-6.12.3-6.el6.i686 requires libHSdirectory-1.0.1.1-ghc6.12.3.so"

a quick "yum search libHSdirectory" returned nothing.

maybe there's a repository I can add for the easiest method of install?